Ir emitter diode, also known as infrared emitting diode, is a semiconductor device that emits infrared light when an electric current passes through it. It is widely used in various fields such as consumer electronics, automotive, medical, and industrial applications. This article will provide an in-depth introduction to the industry of infrared emitting diodes, covering their working principles, types, applications, and market trends.

Working Principles of Infrared Emitting Diode

An infrared emitting diode is a type of light-emitting diode (LED) that emits infrared light. It consists of a PN junction formed by a semiconductor material, such as gallium arsenide (GaAs), gallium phosphide (GaP), or aluminum gallium arsenide (AlGaAs). When an electric current is applied to the diode, electrons and holes are injected into the PN junction, and they recombine to release energy in the form of photons. The photons have a wavelength in the infrared region of the electromagnetic spectrum, which is not visible to the human eye. The infrared emitting diode has several advantages over traditional light sources. Firstly, it has a high luminous efficiency, which means it can convert a large portion of the electrical energy into light energy. Secondly, it has a long service life and is durable. Finally, it has a small size and low power consumption, making it suitable for various applications.

Types of Infrared Emitting Diode

There are mainly two types of infrared emitting diodes: gallium arsenide infrared emitting diodes and gallium phosphide infrared emitting diodes. 1. Gallium arsenide infrared emitting diode (GaAs IR LED): This type of infrared emitting diode has a shorter wavelength and higher intensity compared to gallium phosphide infrared emitting diodes. It is commonly used in applications such as remote controls, infrared communication, and infrared sensors. 2. Gallium phosphide infrared emitting diode (GaP IR LED): This type of infrared emitting diode has a longer wavelength and lower intensity compared to gallium arsenide infrared emitting diodes. It is widely used in applications such as infrared thermometers, infrared detectors, and infrared cameras. In addition to these two types, there are also other types of infrared emitting diodes, such as aluminum gallium arsenide infrared emitting diodes (AlGaAs IR LED) and indium gallium arsenide phosphide infrared emitting diodes (InGaAsP IR LED), which are used in specific applications.

Applications of Infrared Emitting Diode

Infrared emitting diodes have a wide range of applications due to their excellent performance and characteristics. The following are some of the main applications: 1. Consumer electronics: Infrared emitting diodes are widely used in remote controls, such as television, air conditioner, and set-top box remote controls. They are also used in wireless communication devices, such as Bluetooth and Wi-Fi modules. 2. Automotive industry: Infrared emitting diodes are used in automotive applications, such as reverse parking sensors, automotive cameras, and driver assistance systems. 3. Medical field: Infrared emitting diodes are used in medical equipment, such as infrared thermometers, endoscopes, and medical imaging devices. 4. Industrial applications: Infrared emitting diodes are used in industrial applications, such as infrared sensors, infrared thermal imaging cameras, and laser marking equipment. 5. Security and surveillance: Infrared emitting diodes are used in security and surveillance systems, such as infrared cameras, motion sensors, and remote monitoring systems.

Market Trends of Infrared Emitting Diode Industry

The infrared emitting diode industry has been growing rapidly in recent years due to the continuous expansion of its application fields. The following are some of the current market trends: 1. High-performance infrared emitting diodes: As the application requirements become more stringent, high-performance infrared emitting diodes with higher brightness, longer wavelength, and lower power consumption are becoming increasingly popular. 2. Miniaturization and integration: The trend of miniaturization and integration in the infrared emitting diode industry is evident, as more devices are integrated into a smaller space to achieve higher performance and better user experience. 3. Green and energy-saving: With the increasing awareness of environmental protection and energy conservation, green and energy-saving infrared emitting diodes are becoming the focus of the industry. 4. Market competition: The infrared emitting diode market is becoming increasingly competitive, with many domestic and foreign companies entering the market. This competition is expected to drive the industry to further development and innovation. In conclusion, infrared emitting diodes have a wide range of applications and significant market potential. With the continuous development of technology and the expansion of application fields, the infrared emitting diode industry is expected to maintain a stable and rapid growth in the future.